Questions tagged [file-handling]
File handling refers to the set of tools, functions, and libraries to work with files and file handles. Creating, writing, appending, moving, and deleting files fall in this domain.
172 questions
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Scaling/microservices approach to reading files from same directory
My company receives files via SFTP. We currently have a service running on a timer that:
polls the inbound directory
moves files to an 'In Progress' directory
processes files (queueing messages for ...
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What is a suitable format for writing large amounts of data within few milliseconds
I have a c++ code that needs to store some data whenever an event is triggered. The data contains about 3000 floating point values. So each of these values needs to be written in a file when the event ...
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The best way to handle exceptions?
I have the following method, which needs to return a List, but exceptions might occur along the way, and I don't want to handle them in my application, mainly because I don't even know how to handle ...
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Looking for clarification on the process of playing audio files [closed]
I've been working on a software project recently that's meant to include an audio player, and my plans for it definitely are to simply use an off-the-shelf player library, and go with that. However, ...
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How to Design a Secure Script for Conditional File Access Based on Time and API Conditions?
I want to create a secure script that grants access to files based on specific conditions. The access should be controlled by both time-based and API-based conditions. The script should only allow ...
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What is the advantage of log file rotation based on file size?
I understand that log file rotation is changing the log file you used when (1) one gets big enough or (2) at EOD, but I'm not sure I understand the reason for (1). I have never had any issues with ...
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Allow-Rendering-Prevent-Download Architecture
I am trying to devise a simple system that, with the use of tokens, allows a specific file to be rendered in the client's browser, yet prevents the user agent from being able to download the file. ...
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Load and process (compressed) data from filesystem in the blink of an eye
We have a huge amount of queries hitting our API that request a minor or major extract of some huge files lying around on our mounted hard drives. The data needs to be extracted from the files and ...
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What are some architectures and designs I could use to optimize the performance of file text data lookups?
I would like to write a program that essentially handles text data and metadata of files locally on a machine's filesystem. There is no need for any network activity. I am working with large ...
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Folder structure to store image/file uploads
I'm working on a system and we need to do some refactoring on the upload service, that handles all files and images uploads to the system. Nothing fancy, but I it got me thinking about the folder ...
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Checking if a file exists before writing. Always avoid, or sensible with the right use case?
There are few reliable absolutes in this world. One I have relied on is the idea that checking if a file exists before doing something with it just creates an unwanted race condition. Meaning between ...
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Selecting the endianness of data in files generated by an embedded system
I have an embedded system running on a little-endian Cortex-M3. This system is able to accept packets from the network and reply to them. Now, I would like the system to start generating files. These ...
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Regrouping several application files into one
I am working on a C++ application which lets users work on projects.
Each project consists of several files that should not be known / edited manually by the user.
For that we currently use a folder ...
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How best to keep Excel Workbook field in sync across class instances
I know almost nothing about threads, synchronization, ...
That being said, I am working on a record handler, that hits Excel sheet to pull/push data. There exist, in my code base, a BaseRecordHandler, ...
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Dealing with multiple application instances
I'm developing an application (Java & JavaFX) that writes/reads data (a file). The problem is I don't want to restrict user to run only one instance (of my app) at a time, as I really can't think ...